Gravity controlled liquid applying device



March 10, 1953 H. w. JocKERs 2,630,593

GRAVITY CONTROLLED LIQUID APPLYING DEVICE Filed Jan. 28, 1950 fria/rrr? W Jop/@e ns'.

ATTORNEY Patented Mar. 10, 1953 GRAVITY CONTROLLED LIQUID APPLYING DEVICE Harry W. J ockers, Philadelphia, Pa., assignor to Palico, Inc., Hoboken, N. J., a corporation of New Jersey Application January 28, 1950, Serial No. 141,131

2 Claims. Cl. 15--137) In my prior Patent No. 2,485,494, I have described and broadly claimed a novel gravity controlled liquid applying device, wherein a gravity controlled, weighted brush was moved outwardly of its casing into operative position for applying the liquid when the device was tilted towards an inverted position and the brush was automatically retracted within the casing when the device was returned to an upright position.

My present invention is directed to the same broad conception, but involves a novel construction and arrangement of the component parts for obtaining an accurate metered feed of liquid to the brush without overfeed or dripping from the brush.

A further object of the invention is to devise a novel construction of a casing having a, main liquid receiving chamber communicating by a restricted passage with an yauxiliary chamber leading to a brush receiving opening. A weighted brush carrying rod acts as a piston to facilitate the feed and to agitate the liquid. This rod has an annular groove which during the forward movement of the rod feeds a predetermined amount of liquid from the m-ain chamber into the auxiliary chamber. The rod also moves the brush from the auxiliary chamber through the brush receiving opening into proper position for applying the liquid to a desired surface. The rod has a working nt in the restricted passage and a clearance in the brush receiving opening. The rod thus at the proper time prevents flow from the main chamber to the auxiliary ch-amber and from the auxiliary chamber to the main chamber.

With the foregoing and other objects in view as will hereinafter clearly appear, my invention comprehends a novel gravity controlled liquid `applying device.

It further comprehends a novel construction of a casing and a novel construction of a weighted, brush carrying rod, the casing and rod cooperating to produce the desired feed of liquid on tilting the casing of the device.

For the purpose of illustrating the invention, I have shown in the accompanying drawings a preferred embodiment of it which I have found in practice to give satisfactory and reliable results. It is, however, to be understood that the various instrumentalities of which the invention consists can be variously arranged and organized and the invention is not limited to the exact arrangement and organization of these instrumentalities as herein set forth.

Figure l is a sectional elevation of a gravity 2 controlled liquid applying device, embodying my invention.

Figure 2 is a section on line 2-2 of Figure 1 with the cap removed.

Figure 3 is a section on line 3-3 of Figure 1.

Figure 4 is a sectional elevation of the device in an inverted position.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings:

The body portion of the ydevice comprises a casing I having its inner end closed as at 2. The casing has a main liquid receiving chamber 3 which communicates by a restricted passage 4 with an auxiliary chamber 5 which leads to a brush receiving opening 6. A cap l detachably connected with the casing seals the opening 5, and as shown is in threaded engagement with the casing. The restricted passage 4 extends through a bushing 8 having a press fit in the casing.

The inner Wall of the chamber 3 is tapered or coned towards the intake of the passage 4 to `form a seat.

A rod 9 within the casing has a brush l fixed `to its outer end and has -a weight Il at its inner end, the sides of the Weight being cut away to provide a clearance for the liquid. This rod has its forward portion of reduced diameter to have a working nt in the passage 4 and a clearance in the opening 6. The rod has an annular groove l2 forming spa-ced valve heads and a shoulder i3 on the rod engages the seat to limit forward movement of the rod in the casing.

Assuming now that the casing has been supplied vvith liquid, and the cap removed, the operation is as follows.

If the device is tilted from its upright position seen in Figure l to the inverted position seen in Figure 4, the rod 9 automatically moves forwardly. The liquid from the main chamber 3 lls the space between the wall of the groove l2 and that of the passage 4 and the liquid in such space passes into the auxiliary chamber 5 to moisten the brush. On the continued forward movement of the rod, the rod cuts oif the feed from the chamber 3 and also prevents any flow from chamber 5 to the chamber 3.

For convenience in manufacture and assembly, the casing is made in sections connected by a press nt.

The Weight is free to move by gravity in opposite directions to move the brush outwardly of the casing or to retract it within the casing and such action is automatic on tilting the casing, it being apparent that the tilting of the casing from an upright position towards an inverted lposition causes an outward movement of the rod and brush, and its return to an upright position caus-es a gravity movement of the weighted brush to retract it within the casing.

Having thus `described my invention, what I claim as new and desire to secure by Letters Patent is:

1. `In a liqui-d applying device, a .casing having one end closed and a brush receiving opening at the other end, and having a main liquid receiving chamber communicating b'y a restricted passage with an :auxiliary chamber leading to the brush receiving opening, said casing having a seat at the end of the passage which communicates with the main liquid receiving chamber, a weighted rod free to move in either direction within the casing by gravity and having spaced valve heads having a working fit in said restricted passage, said rod having an annular gro-ove between said heads cooperating with said passage to feed a metered amount of liquid therethroughv from said main chamber into said auxiliary chamber,

4 and .a brush at the outer end of said rod and movable through said brush receiving opening when the device is tilted from an upright position to an inverted position, said rod being shaped to engage lsaid sea-t when the casing is in an inverted position.

2. The construction defined in claim 1, where in the outer valve head ofthe rod has a clearance in the brush receiving opening when 'the brush.

is moved outwardly from 'the casing.

HARRY W. JOCKERS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,002,995 Johnson Sept. l2, 1911 2,485,494 Jockers Oct. 18, 1949 FOREIGN PATENTS Number Country -Date 628,297 Great Britain Aug. 25, 1949 

